No formal warning issued to captains or ship owners, but industry body says they are exercising greater vigilance British officials believe Russia will try to retaliate for the Royal Marines’ seizure of the oil tanker Smyrtos, prompting UK ship owners to exercise greater vigilance until tensions ...
Source: [Guardian World](https://www.theguardian.com/politics/2026/jun/17/uk-expect-russia-retaliate-seizure-shadow-fleet-oil-tanker-smyrtos)